That would be tough place to anchor that plane, look at the high tide level, the guy standing on the beach, the top of his head is below high tide. The amount of slack you would have at low tide means the plane would be blown all over the place.

does not look like it was even anchored. appears to be a kayak launch with one kayaker, push back and launch. concerned about the fog for launch. what is that floating on the water hidden in the fog? an expression often heard is "rocks in those clouds. fresh water lake as the evergreen trees so close to the wet shore line do not like salt water.